Consolidated Statements of Equity and Temporary Equity (Unaudited) - USD ($)	Total	Common Stock Class P Common Stock	Common Stock Class A Common Stock	Common Stock Class T Common Stock	Common Stock Class W Common Stock	Common Stock Class Y Common Stock	Common Stock Class Z Common Stock	Additional Paid-in Capital	Distributions	Accumulated Deficit	Accumulated Other Comprehensive Income (Loss)	Total Strategic Storage Trust VI, Inc. Equity	Noncontrolling Interests Noncontrolling Interests in our Operating Partnership	Series C Subordinated Units Noncontrolling Interests in our Operating Partnership	Redeemable Common Stock	Preferred Stock	Series D Preferred Units in our Operating Partnership
Beginning Balance at Dec. 31, 2023	$ 97,082,934	$ 11,100	$ 3,340	$ 5,290	$ 688	$ 383	$ 37	$ 174,586,716	$ (18,590,483)	$ (64,094,793)	$ 449,185	$ 92,371,463	$ 1,514,388	$ 3,197,083	$ 6,727,982	$ 148,599,723
Beginning Balance (in shares) at Dec. 31, 2023		11,100,444	3,339,780	5,289,743	687,653	382,656	36,559
Gross proceeds from issuance of common stock	10,586,193					$ 1,054	$ 84	10,585,055				10,586,193
Gross proceeds from issuance of common stock (in shares)						1,054,322	83,978
Offering costs	(1,258,498)							(1,258,498)				(1,258,498)
Changes to redeemable common stock	(1,303,340)							(1,303,340)				(1,303,340)			1,303,340
Redemption of common stock	(13)	$ (5)		$ (8)								(13)			(784,542)
Redemption of common stock (in shares)		(5,494)		(8,217)
Distributions	(3,161,870)								(3,161,870)			(3,161,870)
Distributions to noncontrolling interests	(84,790)												(84,790)
Issuance of shares for distribution reinvestment plan (DRP)	1,303,340	$ 74	$ 22	$ 33	$ 5	$ 5		1,303,201				1,303,340
Issuance of shares for distribution reinvestment plan (DRP) (in shares)		74,503	22,403	33,026	4,978	4,810	412
Stock based compensation expense	8,070							8,070				8,070
Issuance of Series C Subordinated Units/Series D Preferred Units	359,926													359,926
Distributions to preferred stockholders																(3,166,042)
Net loss attributable to Strategic Storage Trust VI, Inc.	(11,923,621)									(11,923,621)		(11,923,621)				3,166,042
Net loss attributable to the noncontrolling interests in our Operating Partnership	(225,373)												(225,373)
Interest rate hedge contracts	777,342										758,374	758,374	18,968
Foreign currency translation adjustment	(1,550,882)										(1,511,559)	(1,511,559)	(39,323)
Foreign currency hedge contract	(21,170)										(20,652)	(20,652)	(518)
Ending Balance at Mar. 31, 2024	90,588,248	$ 11,169	$ 3,362	$ 5,315	$ 693	$ 1,442	$ 121	183,921,204	(21,752,353)	(76,018,414)	(324,652)	85,847,887	1,183,352	3,557,009	7,246,780	148,599,723
Ending Balance (in shares) at Mar. 31, 2024		11,169,453	3,362,183	5,314,552	692,631	1,441,788	120,949
Beginning Balance at Dec. 31, 2023	97,082,934	$ 11,100	$ 3,340	$ 5,290	$ 688	$ 383	$ 37	174,586,716	(18,590,483)	(64,094,793)	449,185	92,371,463	1,514,388	3,197,083	6,727,982	148,599,723
Beginning Balance (in shares) at Dec. 31, 2023		11,100,444	3,339,780	5,289,743	687,653	382,656	36,559
Distributions to preferred unitholders in our Operating Partnership	(9,399,516)
Issuance of shares for distribution reinvestment plan (DRP)	4,194,003
Series D Preferred equity issuance costs	2,699,312
Net loss attributable to the noncontrolling interests in our Operating Partnership	(609,423)
Foreign currency hedge contract	(310,063)
Ending Balance at Sep. 30, 2024	74,602,779	$ 11,244	$ 3,373	$ 5,357	$ 703	$ 3,169	$ 245	199,218,090	(28,532,043)	(98,350,275)	(2,460,809)	69,899,054	577,703	4,126,022	9,232,198	148,599,723
Ending Balance (in shares) at Sep. 30, 2024		11,244,156	3,373,014	5,357,014	702,574	3,168,958	245,414
Beginning Balance at Mar. 31, 2024	90,588,248	$ 11,169	$ 3,362	$ 5,315	$ 693	$ 1,442	$ 121	183,921,204	(21,752,353)	(76,018,414)	(324,652)	85,847,887	1,183,352	3,557,009	7,246,780	148,599,723
Beginning Balance (in shares) at Mar. 31, 2024		11,169,453	3,362,183	5,314,552	692,631	1,441,788	120,949
Gross proceeds from issuance of common stock	8,296,378					$ 856	$ 36	8,295,486				8,296,378
Gross proceeds from issuance of common stock (in shares)						856,277	35,806
Offering costs	(984,775)							(984,775)				(984,775)
Changes to redeemable common stock	(1,410,065)							(1,410,065)				(1,410,065)			1,410,065
Redemption of common stock	(91)	$ (69)	$ (7)	$ (15)								(91)			(390,986)
Redemption of common stock (in shares)		(69,075)	(7,252)	(14,702)
Distributions	(3,303,089)								(3,303,089)			(3,303,089)
Distributions to noncontrolling interests	(84,791)												(84,791)
Issuance of shares for distribution reinvestment plan (DRP)	1,410,065	$ 76	$ 23	$ 33	$ 5	$ 13	$ 1	1,409,914				1,410,065
Issuance of shares for distribution reinvestment plan (DRP) (in shares)		76,121	22,911	33,433	5,082	13,237	835
Issuance of restricted stock	5		$ 5									5
Issuance of restricted stock (in shares)			5,000
Stock based compensation expense	8,070							8,070				8,070
Distribution of common stock								3,219		(3,219)
Distribution of common stock (in shares)			346
Issuance of Series C Subordinated Units/Series D Preferred Units	277,316													277,316
Distributions to preferred stockholders																(3,085,113)
Net loss attributable to Strategic Storage Trust VI, Inc.	(11,384,943)									(11,384,943)		(11,384,943)				3,085,113
Net loss attributable to the noncontrolling interests in our Operating Partnership	(202,777)												(202,777)
Interest rate hedge contracts	(247,881)										(242,024)	(242,024)	(5,857)
Foreign currency translation adjustment	(649,607)										(634,019)	(634,019)	(15,588)
Foreign currency hedge contract	9,257										9,039	9,039	218
Ending Balance at Jun. 30, 2024	82,321,320	$ 11,176	$ 3,383	$ 5,333	$ 698	$ 2,311	$ 158	191,243,053	(25,055,442)	(87,406,576)	(1,191,656)	77,612,438	874,557	3,834,325	8,265,859	148,599,723
Ending Balance (in shares) at Jun. 30, 2024		11,176,499	3,383,188	5,333,283	697,713	2,311,302	157,590
Gross proceeds from issuance of common stock	8,935,056					$ 838	$ 86	8,934,132				8,935,056
Gross proceeds from issuance of common stock (in shares)						837,836	86,933
Offering costs	(969,920)							969,920				(969,920)
Changes to redeemable common stock	(1,480,597)							(1,480,597)				(1,480,597)			1,480,597
Redemption of common stock	(44)	$ (5)	$ (32)	$ (7)								(44)			(514,258)
Redemption of common stock (in shares)		(5,128)	(32,258)	(7,477)
Distributions	(3,476,601)								(3,476,601)			(3,476,601)
Distributions to noncontrolling interests	(85,722)												(85,722)
Distributions to preferred unitholders in our Operating Partnership	(3,148,361)
Issuance of shares for distribution reinvestment plan (DRP)	1,480,597	$ 73	$ 22	$ 31	$ 5	$ 20	$ 1	1,480,445				1,480,597
Issuance of shares for distribution reinvestment plan (DRP) (in shares)		72,785	22,084	31,208	4,861	19,820	891
Stock based compensation expense	10,977							10,977				10,977
Issuance of Series C Subordinated Units/Series D Preferred Units	291,697													291,697
Distributions to preferred stockholders																(3,148,361)
Net loss attributable to Strategic Storage Trust VI, Inc.	(10,943,699)									(10,943,699)		(10,943,699)				3,148,361
Net loss attributable to the noncontrolling interests in our Operating Partnership	(181,273)												(181,273)
Interest rate hedge contracts	(1,668,164)										(1,630,605)	(1,630,605)	(37,559)
Foreign currency translation adjustment	691,127										675,551	675,551	15,576
Foreign currency hedge contract	(321,975)										(314,099)	(314,099)	(7,876)
Ending Balance at Sep. 30, 2024	74,602,779	$ 11,244	$ 3,373	$ 5,357	$ 703	$ 3,169	$ 245	199,218,090	(28,532,043)	(98,350,275)	(2,460,809)	69,899,054	577,703	4,126,022	9,232,198	148,599,723
Ending Balance (in shares) at Sep. 30, 2024		11,244,156	3,373,014	5,357,014	702,574	3,168,958	245,414
Beginning Balance at Dec. 31, 2024	64,472,918	$ 11,280	$ 3,384	$ 5,374	$ 705	$ 4,050	$ 346	207,773,199	(32,142,866)	(111,392,263)	(4,432,786)	59,830,423	225,081	4,417,414	10,279,772	148,599,723
Beginning Balance (in shares) at Dec. 31, 2024		11,280,098	3,383,583	5,373,889	704,761	4,049,909	346,393
Gross proceeds from issuance of common stock	7,245,070	$ 65				$ 628	$ 41	7,244,336				7,245,070
Gross proceeds from issuance of common stock (in shares)		64,865				627,757	41,250
Offering costs	(867,972)							(867,972)				(867,972)
Changes to redeemable common stock	(1,600,498)							(1,600,498)				(1,600,498)			1,600,498
Redemption of common stock	(48)	$ (35)	$ (8)	$ (5)								(48)			(174,331)
Redemption of common stock (in shares)		(34,616)	(7,883)	(5,355)
Distributions	(3,686,874)								(3,686,874)			(3,686,874)
Distributions to noncontrolling interests	(84,008)												(84,008)
Distributions to preferred unitholders in our Operating Partnership																(3,088,356)
Issuance of shares for distribution reinvestment plan (DRP)	1,600,498	$ 71	$ 21	$ 29	$ 5	$ 32	$ 2	1,600,338				1,600,498
Issuance of shares for distribution reinvestment plan (DRP) (in shares)		70,472	21,553	29,791	4,969	31,952	1,315
Stock based compensation expense	10,977							10,977				10,977
Issuance of Series C Subordinated Units/Series D Preferred Units	294,276													294,276
Net loss attributable to Strategic Storage Trust VI, Inc.	(10,176,307)									(10,176,307)		(10,176,307)				3,088,356
Net loss attributable to the noncontrolling interests in our Operating Partnership	(152,735)												(152,735)
Interest rate hedge contracts	(1,245,793)										(1,215,280)	(1,215,280)	(30,513)
Foreign currency translation adjustment	63,949										62,709	62,709	1,240
Foreign currency hedge contract	(155,256)										(151,458)	(151,458)	(3,798)
Ending Balance at Mar. 31, 2025	55,718,197	$ 11,381	$ 3,397	$ 5,398	$ 710	$ 4,710	$ 389	214,160,380	(35,829,740)	(121,568,570)	(5,736,815)	51,051,240	(44,733)	4,711,690	11,705,939	148,599,723
Ending Balance (in shares) at Mar. 31, 2025		11,380,819	3,397,253	5,398,325	709,730	4,709,618	388,958
Beginning Balance at Dec. 31, 2024	64,472,918	$ 11,280	$ 3,384	$ 5,374	$ 705	$ 4,050	$ 346	207,773,199	(32,142,866)	(111,392,263)	(4,432,786)	59,830,423	225,081	4,417,414	10,279,772	148,599,723
Beginning Balance (in shares) at Dec. 31, 2024		11,280,098	3,383,583	5,373,889	704,761	4,049,909	346,393
Distributions to preferred unitholders in our Operating Partnership	(9,368,014)
Issuance of shares for distribution reinvestment plan (DRP)	4,984,554
Series D Preferred equity issuance costs	2,075,386
Net loss attributable to the noncontrolling interests in our Operating Partnership	(379,236)
Foreign currency hedge contract	(1,187,637)
Ending Balance at Sep. 30, 2025	38,771,794	$ 11,394	$ 3,251	$ 5,416	$ 715	$ 5,419	$ 574	222,141,939	(43,576,893)	(139,015,855)	(5,450,572)	34,125,388	(430,159)	5,076,565	11,575,414	148,599,723	$ 24,726,843
Ending Balance (in shares) at Sep. 30, 2025		11,394,363	3,250,889	5,416,466	714,501	5,419,065	573,972
Beginning Balance at Mar. 31, 2025	55,718,197	$ 11,381	$ 3,397	$ 5,398	$ 710	$ 4,710	$ 389	214,160,380	(35,829,740)	(121,568,570)	(5,736,815)	51,051,240	(44,733)	4,711,690	11,705,939	148,599,723
Beginning Balance (in shares) at Mar. 31, 2025		11,380,819	3,397,253	5,398,325	709,730	4,709,618	388,958
Gross proceeds from issuance of common stock	7,925,122					$ 612	$ 181	7,924,329				7,925,122
Gross proceeds from issuance of common stock (in shares)						611,712	180,800
Offering costs	(1,008,722)							(1,008,722)				(1,008,722)
Adjustment to offering costs (See note 2)	949,281							949,281				949,281
Changes to redeemable common stock	(1,670,966)							(1,670,966)				(1,670,966)			1,670,966
Redemption of common stock	(25)	$ (13)		$ (12)								(25)			(3,164,029)
Redemption of common stock (in shares)		(12,636)		(12,321)
Distributions	(3,828,579)								(3,828,579)			(3,828,579)
Distributions to noncontrolling interests	(85,022)												(85,022)
Issuance of shares for distribution reinvestment plan (DRP)	1,670,966	$ 71	$ 23	$ 30	$ 5	$ 36	$ 1	1,670,800				1,670,966
Issuance of shares for distribution reinvestment plan (DRP) (in shares)		71,183	22,266	29,938	5,131	37,142	1,436
Issuance of restricted stock	5		$ 5									5
Issuance of restricted stock (in shares)			5,000
Stock based compensation expense	10,977							10,977				10,977
Distribution of common stock								3,219		(3,219)
Distribution of common stock (in shares)			346
Issuance of Series C Subordinated Units/Series D Preferred Units	278,726													278,726
Distributions to preferred stockholders																(3,122,671)
Net loss attributable to Strategic Storage Trust VI, Inc.	(6,107,379)									(6,107,379)		(6,107,379)				3,122,671
Net loss attributable to the noncontrolling interests in our Operating Partnership	(60,396)												(60,396)
Interest rate hedge contracts	(162,469)										(163,668)	(163,668)	1,199
Foreign currency translation adjustment	2,411,852										2,362,372	2,362,372	49,480
Foreign currency hedge contract	(1,034,818)										(1,014,574)	(1,014,574)	(20,244)
Ending Balance at Jun. 30, 2025	55,006,750	$ 11,439	$ 3,425	$ 5,416	$ 715	$ 5,358	$ 571	222,039,298	(39,658,319)	(127,679,168)	(4,552,685)	50,176,050	(159,716)	4,990,416	10,212,876	148,599,723
Ending Balance (in shares) at Jun. 30, 2025		11,439,366	3,424,865	5,415,942	714,861	5,358,472	571,194
Gross proceeds from issuance of common stock	197,000					$ 20		196,980				197,000
Gross proceeds from issuance of common stock (in shares)						19,700
Offering costs	(105,040)							(105,040)				(105,040)
Changes to redeemable common stock	(1,713,090)							(1,713,090)				(1,713,090)			1,713,090
Redemption of common stock	(347)	$ (116)	$ (196)	$ (29)	$ (6)							(347)			(350,552)
Redemption of common stock (in shares)		(115,699)	(195,648)	(29,308)	(5,797)
Distributions	(3,918,574)								(3,918,574)			(3,918,574)
Distributions to noncontrolling interests	(85,957)												(85,957)
Distributions to preferred unitholders in our Operating Partnership	(3,156,987)
Issuance of shares for distribution reinvestment plan (DRP)	1,713,090	$ 71	$ 22	$ 29	$ 6	$ 41	$ 3	1,712,918				1,713,090
Issuance of shares for distribution reinvestment plan (DRP) (in shares)		70,696	21,672	29,832	5,437	40,893	2,778
Stock based compensation expense	10,873							10,873				10,873
Distributions to Series D preferred unitholders																	(87,500)
Issuance of Series C Subordinated Units/Series D Preferred Units	86,149													86,149			25,000,000
Series D Preferred equity issuance costs																	(273,157)
Distributions to preferred stockholders																(3,156,987)
Net loss attributable to Strategic Storage Trust VI, Inc.	(11,336,687)									(11,336,687)		(11,336,687)				3,156,987	87,500
Net loss attributable to the noncontrolling interests in our Operating Partnership	(166,105)												(166,105)
Interest rate hedge contracts	(28,082)										(27,513)	(27,513)	(569)
Foreign currency translation adjustment	(890,623)										(872,762)	(872,762)	(17,861)
Foreign currency hedge contract	2,437										2,388	2,388	49
Ending Balance at Sep. 30, 2025	$ 38,771,794	$ 11,394	$ 3,251	$ 5,416	$ 715	$ 5,419	$ 574	$ 222,141,939	$ (43,576,893)	$ (139,015,855)	$ (5,450,572)	$ 34,125,388	$ (430,159)	$ 5,076,565	$ 11,575,414	$ 148,599,723	$ 24,726,843
Ending Balance (in shares) at Sep. 30, 2025		11,394,363	3,250,889	5,416,466	714,501	5,419,065	573,972