08-09-2026, 10:08 PM
@Kirt:
Yes, we did the cutting ourselves, and like you, we have some windows that required two piece covers. My research says that is fine, as long they fit tightly together. We used 5/8 inch plywood for ours. We used the affordable Olympic Waterguard clear water sealer because the covers are stored in a dry indoor area and will only be exposed to the elements for relatively short periods should they be used. Olympic is not recommended for long term outdoor exposure, so keep that in mind.
HPM also sells plywood rated for this use, and they quoted us a price slghtly lower than Home Depot. We went with HD, however, because they allow you to select the sheets yourself. HPM pulls them for you, and if you don't like one or more, you have to send them back for switching. Having bought from HPM in the past, I can tell you that you will most likely be sending some back. Not worth the hassle for 50 cents a sheet.
Hope this helps.
Yes, we did the cutting ourselves, and like you, we have some windows that required two piece covers. My research says that is fine, as long they fit tightly together. We used 5/8 inch plywood for ours. We used the affordable Olympic Waterguard clear water sealer because the covers are stored in a dry indoor area and will only be exposed to the elements for relatively short periods should they be used. Olympic is not recommended for long term outdoor exposure, so keep that in mind.
HPM also sells plywood rated for this use, and they quoted us a price slghtly lower than Home Depot. We went with HD, however, because they allow you to select the sheets yourself. HPM pulls them for you, and if you don't like one or more, you have to send them back for switching. Having bought from HPM in the past, I can tell you that you will most likely be sending some back. Not worth the hassle for 50 cents a sheet.
Hope this helps.