Don't know what type of blind you've got, but here is a sketch I did back about 15 years ago for a blind I was putting up in some old abandoned gravel/sand pits that I leased from a paving company to duck and goose hunt in. The only thing I remember it costing me was for some hinges and a couple of rubber heavy duty bungee cords, camo paint and a few eye screws. There was lots of old 4x4 treated 1/2 inch plywood road signs, plenty of treated 4/4 x 8' treated signposts and rolls of that black plastic erosion fencing. Everything I needed to make a blind and even had a contingent of mallards & widgeon that visited all thru the day.
I found some 5/4 rounded treated boards that I made the flip top out of after I took them back to my shop and split them so the top wouldn't be so heavy. I used the bungee cords to assist in pulling the lid back and all you had to do was give it a little shove and the bungees would do the rest. The bungees were attached to eye screws in the lid and back-support posts. I had to put a "stopper chains" on each side which were attached to the lid and the middle of the side-support posts. They would keep the lid from going all the way back and down. I had to "fine tune' the chains and bungees so the "recoil" wouldn't bring the lid back down on my/our heads. I later put in a middle back-support post to further support the lid as the torque from the bungees was trying to destroy the lid. The extra post made it much better. The lid was attached to back three posts with hinges. I brushed the blind and the lid with red cedar, which is prevalent around here, using cable ties. The blind served me well for many years until the paving company sold the property for big bucks.
Not sure if I would do that same lid out of the same construction material now. I now have access to thousands of pieces of conduit which was used in a tree farm to hold up the tree protectors, so about the bottom 2 feet is rusty beyond use but the other 8 feet is fine. I think using elbows for corners and flattening out the ends of cross pieces, I could make the lid much lighter and be just as effective. Bungees would still work for the 'assist pull'.
Click to enlarge
Last edited by tenfingergrip
on Thu Jul 24, 2014 11:22 am, edited 1 time in total.