I was using 2-1/2" coarse Kreg pocket hole screws. Kreg screws are supposed to be self-tapping, but the coarse-thread screws are intended to be self-tapping in softwood, and the fine-thread screws they intend for use in hardwoods aren't available in 2-1/2" lengths. I decided to drill pilot holes in the oak. Just to make sure, I did a test hole in the scrap piece I'd cut off.
Be careful. Single 24x60" sheets of 3/4" MDF are pretty easy to lift. A doubled sheet is manageable. The countertop - 24x72" panel of 1-1/2" oak - weighs something over 100 pounds. It takes real care to lift safely. The joined top - 3" thick of oak and MDF - is past the range that can be lifted safely by one person. Don't try. Get a friend to help, or rig a block-and-tackle.
Our Lexington model was designed to match many traditional New England homes, in Massachusetts and beyond. The steep pitch of the roof is built to withstand sometimes-punishing New England snow loads and complement today’s home design styles. Post Woodworking can match most vinyl siding colors, so that your shed color will coordinate with your home as well. And as is the case with all of our sheds, interior solar lighting is available to light up the night.