On Mon, 25 Jun 2018 05:37:20 wrote:

Just went thru this exercise. Built 9 planters, all dovetailed
corners, from PT lumber, sealed inside and out with 2 coats of clear
Cabot waterproofing. Put 1/4" galv hardware cloth in the bottom,
covered by weed blocking fabric. Lined the planter with 6 mil poly
letting it hang/drape over the top edge, with the bottom scored so as
to direct water to the bottom where it can drain. Using Plastic J
molding (think vinyl siding accessory) capped the planter top and
trimmed off the excess poly. Exterior of planter/capping was coated
with exterior solid stain. Plants are doing great, will not know till
next spring if/how well the planters themselves hold up...

never heard of galv hardware cloth will have to look at it

too ambitious for me though