This was my dad's drafting table, he was an architect and urban planner and made it himself out of mostly solid oak in the 80's. The work surface lays flat or it is hinged & can be propped up at about a 15-degree angle (or any other angle, with a larger support block.) It is very sturdy - heavy but comes apart & is currently disassembled for transport.
Total width is 6' 10", writing surface is about 5' wide. 42" deep and about 3' tall.