The London-based creative studio – founded by Anna Murray and Grace Winteringham – designed a gradient pattern for the Ascension bouldering wall, which gradually changes colour towards the top.
"The surface design created here is intended as a celebration of the act of climbing itself; a reward for patience and perseverance, resulting in strength and growth," said the studio.
Although installed to coincide with the London Design Festival, the wall will remain downstairs in the hotel's gym and is available for all guests to use.
Patternity hand-painted the pattern on the plywood wall and integrated different coloured climbing holds into the surface design.
The gradient of the wall can be adjusted from 11 to 50 degrees using a crank – accommodating both novice and accomplished climbers.
Patternity created the bouldering wall as part of Ace's Ready Made Go 2 project, where a group of designers were invited to create pieces that will be used in the hotel.
Last year's event, curated by Modern Design Review magazine, included stackable stools, cast concrete lights and copper cone-shaped ashtrays that were all designed for the venue.
This year's London Design Festival officially kicked off this weekend, with events and installations taking place across the capital until 25 September.
Also for the festival, architect Asif Khan installed plant-filled pavilions across Shoreditch, while Lee Broom has transformed his store into a giant optical illusion.
Photography is by Jorn Tomter.