We are at the early stages of assembling a greenhouse in the garden. There was already a concrete block when we moved into the house. The far left corner of the block is slightly sunk. Ideally we don't want to redo the concrete block. My fiancee has assembled the frame and plopped it ontop the block to get an idea of what we are working with. I've attached photos.
He mentioned making a wooden frame to attach to the concrete to level it, however isn't sure how to do this/if it would work.
What would you do in this situation? Do you have any suggestions on how he could make a frame to correct this issue? Thank you in advance đ
by Poppleberry83
7 Comments
Self leveling concrete or reskin then sink and seal the frame to it.
Husband is right. I like the leveling using a wood frame (make sure to use âground contactâ PT wood).
Also create a drain channel for water to drain out the low side.
Use ground safe wood and make a frame slightly wider than the base of the greenhouse. Then, fill full of gravel to make a new level floor to place the greenhouse on.
If you make a frame the frame will sink to be un level as well unless itâs shimmed. The weight of the installed plastic will also have issues as adding the additional weight progresses.
I used concrete 4x8x16 blocks and concrete screwed into those. All but 1″ of the base is inside the greenhouse/under the frame.
I would epoxy coat the hell out of that concrete and then use PVC lumber to frame the base and make sure to very securely attach that base to the concrete and securely attach the greenhouse frame to the base. Definitely leave some drain spaces at the low points, but they don’t have to be very large 1″ space would do and you can easily block them for the winter.
Concrete blocks. Cement in place & level as you go. You be glad for the extra 15mm in height.