Replacement slats are small pieces, but they can make a crate look either tidy or patched in a hurry. The usual trouble is that the new strip wants to creep while the first screw goes in, especially if the side panel is a little bowed or the old fastener holes are close by.
A simple fix is to use a scrap block as a temporary fence. Cut or grab one straight block, set it against the edge where the slat should land, and clamp the block to the crate side. Now the replacement slat has something solid to register against instead of being lined up by eye alone.
Dry-fit the slat first and check both ends before reaching for glue or screws. If it rocks, find the high spot, lightly ease the back edge, and test again. A slat that sits flat under hand pressure will fasten cleaner than one that has to be forced into place.
When the fit looks right, keep the block clamped, drill pilot holes, and start the fasteners only partway. This gives you a last chance to nudge the slat before tightening everything down. If glue is part of the repair, use just enough to wet the joint; squeeze-out on a crate face can collect dust and make refinishing harder later.
The same trick works for shelf lips, small display rails and dividers. Any time a narrow wood piece needs to look parallel, a straight scrap block can do the quiet work of a second pair of hands.
Practical takeaway: clamp a straight scrap block beside the repair, dry-fit the slat, then drill and fasten while the block holds the line. It is faster than chasing a crooked piece after the first screw is tight.
Crate RepairsSlatsShop Tips