WBP ply for small shed base on concrente slabs?

allycavs

Hi

Ive ordered small metal storage unit (5 x 3 ft). No base given. Im thinking of cutting out base from inch thick 8x4 WBP. And use the remainder to cut out little stumps(legs) on corners and other spots to strengthen the base. The base will sit on slabed backyard. There wont be much kept in this unit. Coal, some fire timber. maybe lawnmower and bbq. Would this be strong enough and resistant to weather over the years.

I was also thinking of sitting the unit on 5x3 perimeter of soap blocks cemented primarily for water proofness so no water will trickle underneath and inside?

Thanks
Alan

jonon9

I think you be better off getting PT 4x2 and building a sub-floor than sheet it with ply and have that rest on top of the blocks.

allycavs

so your saying having a few 4x2s screwed onto sheet inside the course of blocks? why have that if I layed a course of blocks on top of the current slabs. would that keep water out anyway and the inside of unit will have the ground of the slabs??

I might do what you say anyway to preserve the slabs from damage as this may not always be a permanent fixture. Ya this ould be cheaper option as id have a few 4 x 2 or similar lying around and can use cheaper sheet material rather than WBP.

Thanks

jonon9

No I mean screwing together some 4x2s just like you do if making a stud wall than sheet the 4x2s with ply, this will become your new shed floor

Next measure out the spots on the slabs to place blocks, the blocks main purpose is to help keep water off the wooden floor and let the wood breath once that is done place the new floor onto the blocks than place the shed onto the floor. Also because it's a small shed try attached it somehow to the floor in case of high winds.

allycavs

great i think i can do that yes. course of blocks and i dont even need 4x2. just put sheeting down on floor so wont damage floor.

DublinDilbert

I would get a length of pressure treated decking and cut strips to sit under the shed base, on top of the slabs your using to raise it up.

docst

WBP ply isn't water proof and performs poorly outdoors especially if exposed to the elements

allycavs wrote: »

Hi

Ive ordered small metal storage unit (5 x 3 ft). No base given. Im thinking of cutting out base from inch thick 8x4 WBP. And use the remainder to cut out little stumps(legs) on corners and other spots to strengthen the base. The base will sit on slabed backyard. There wont be much kept in this unit. Coal, some fire timber. maybe lawnmower and bbq. Would this be strong enough and resistant to weather over the years.

I was also thinking of sitting the unit on 5x3 perimeter of soap blocks cemented primarily for water proofness so no water will trickle underneath and inside?

Thanks
Alan