If you were building workshop racking from timber, making frame for each shelf and then using ply for the tops; would you create the frame first and then attach it to the wall, or would you build the frame on the wall (securing the parts which'd attach directly to the wall first and working out from there?
The reason I ask is because I tried the first way, building the frame on the floor using construction timbre. I tried to cut precisely and keep everything square along the way. But when I had finishing constructing the frame, and offered it up to the wall it was no longer square enough and the back edge had a bow in it. To itself credit, the frame was very rigid but that meant that the bow wouldn't just be taken out when attaching it to the wall.
I believe this issue is almost definitely caused by the construction timbre isn't straight, something I should have checked before. And when I connect to the two long edges of the frame with the noggins on long edged "pulled" the other to its deformation. One solution would be to plane the long edges flat first - but that seems very time consuming for what was supposed to be some quick shelving.
A hybrid of the two ideas would be to create the basic frame on the floor, but only use the 3 crossmembers/noggins (so there is some flex in the frame remaining), mount it to the wall then add the remaining cross members.
Any input is greatly appreciated.
The reason I ask is because I tried the first way, building the frame on the floor using construction timbre. I tried to cut precisely and keep everything square along the way. But when I had finishing constructing the frame, and offered it up to the wall it was no longer square enough and the back edge had a bow in it. To itself credit, the frame was very rigid but that meant that the bow wouldn't just be taken out when attaching it to the wall.
I believe this issue is almost definitely caused by the construction timbre isn't straight, something I should have checked before. And when I connect to the two long edges of the frame with the noggins on long edged "pulled" the other to its deformation. One solution would be to plane the long edges flat first - but that seems very time consuming for what was supposed to be some quick shelving.
A hybrid of the two ideas would be to create the basic frame on the floor, but only use the 3 crossmembers/noggins (so there is some flex in the frame remaining), mount it to the wall then add the remaining cross members.
Any input is greatly appreciated.