Timber floor in a concrete shed.

[CarpenterChris]

Was asked by a friend of a friend to lay a timber floor in an uneven concrete shed, the shed was empty but he's planning to transform it into a workspace and need an even and level floor.

Was going to finish the job but the timber supplier let me down delivering the OSB ply, probably won't use them again as it's made me look a bit of a rouge and above all has cost me money (Won't be able to book jobs until this ones finished) and it's put the customer out.

It's raised of the floor about 10mm and is concreted so I didn't worry about the dampcourse, fixed into the wall and floor with SDS drill and Rawl plugs. The little legs are secured to the timber and stop it from bowing/bouncing in the middle.

Customer wants me to batten the wall and put ply sheets up at a later date, nice little job in all honesty. (sorry if this is irrelevant or whatever, just think it's good to document my work :))

[big-all]

the little legs will move under heavy load get some no nails to form little heaps as that wont give
it will also give continued support if the legs rot through dampness

for a workshop the timbers really should have support every 600mm/2ft or so

i assume the osb is at least 18mm assuming its 600 centers

[Crooksey]

A job that could have been completed in ~1 hour with a heavy duty self levelling compound.

[Wes]

As BA mentioned, the legs fixed on the side will give. The screws attaching the legs are going to receive a shear downward force. You need slither packings at intervals directly underneath the frame really Chris..

Have to agreed with Crooksey as well, a decent SLC would have been far quicker, easier and solid for a workspace, although there's nothing inherently wrong with a frame and OSB..

But I tell you what Chris, at least you've put yourself out their mate...Kudos