No, you can't buy wooden commercial racks that require reusing screw holes which slowly degrade over time. Wow...
I use this one: StarTech.com 19" 12U Server Rack Cabinet - https://www.amazon.co.uk/dp/B072DXBK9L/ref=cm_sw_r_apan_glt_i_E7A0B6PA5MP0VKRZQB27?_encoding=UTF8&psc=1
I checked out another startech and this seems neat as well.
https://www.amazon.com/StarTech-com-RK1233BKM-Cabinet-Enclosure-Network/dp/B072DXBK9L
It has no reviews unfortunately.
When looking at the rack at your second link, some people in the reviews mentioned that it didnt fit servers properly which is weird because according to Dell, the poweredge is around 29 inches. Since the enclose is 36 inches, it should fit no sweat, but I feel like I'm missing something judging from the reviews.
It’s a star tech. I got it off amazon here