Make a Potting Bench with Concrete Countertop and Metal Roof

Assemble Potting Bench Frame

I can now begin assembling the frame for the potting bench. I attach the rails to the legs starting with the front side. Then repeat the same steps that for the back side. Roughly positioning the legs, laying and squaring the rails, then driving in a few screws.

Make a Potting Bench with a Cast Concrete Countertop and Galvanized Corrugated Metal Roof.
attach rails to legs with screws

I used all GRK self drilling screws for this project. Sure they are expensive, but they make assembly faster, hold better, and should last a lot longer.

Make a Potting Bench with a Cast Concrete Countertop and Galvanized Corrugated Metal Roof.
adding side rails

With the frame flipped over I’ll attach the 2×4 and 2×6 side rails.

Connecting the Front and Back Frame

Make a Potting Bench with a Cast Concrete Countertop and Galvanized Corrugated Metal Roof.
setting back of frame over side rails

With the front side frame laid over the ends of the side rails I’ll run in some screws to complete this bare bones frame.

Make a Potting Bench with a Cast Concrete Countertop and Galvanized Corrugated Metal Roof.
standing up bench frame

This frame can now be placed on the post saddles that are loosely bolted to the footings. These saddles are slightly adjustable so that made this step easier. 

Setting the Frame on the Post Saddles

Make a Potting Bench with a Cast Concrete Countertop and Galvanized Corrugated Metal Roof.
setting frame on post saddles

This was a bit tricky but once I had it balanced it went okay.

Make a Potting Bench with a Cast Concrete Countertop and Galvanized Corrugated Metal Roof.
setting frame on post saddles

Then screws secure the legs to the saddles. 

Make a Potting Bench with a Cast Concrete Countertop and Galvanized Corrugated Metal Roof.
screwing legs to post saddles

A 4×4 is screwed to the back post and the front rail. And a 2×4 added for mid support of the bottom shelf boards.

Adding Countertop and Shelf Supports

Make a Potting Bench with a Cast Concrete Countertop and Galvanized Corrugated Metal Roof.
attaching countertop support

The beams will be attached to the tops of the legs with a long lag bolt. I need to countersink the head so I’ll first drill a flat bottomed counterbore with a forstner bit. Then using a drill guide I make the hole for the shaft of the bolt.

Make a Potting Bench with a Cast Concrete Countertop and Galvanized Corrugated Metal Roof.
drilling holes in beam ends

The beams are set on the legs and holes drilled before the lag bolts are run in. I guess you could also call these posts instead of legs at this point.

Installing the Beams with Lag Bolts

Make a Potting Bench with a Cast Concrete Countertop and Galvanized Corrugated Metal Roof.
attaching beams to legs (or posts)

The middle back side leg (or post if you like) is brought into line with a clamp then drilled and bolted.


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