Simple Workbench. One 4x8 sheet of 3/4 Plywood and about 10 2x4s

Very STURDY and Flat 4'x8' Workbench Table : 10 Steps (with Pictures) - Instructables

The WBSK workbench and shelving hardware kit provides the connectors and connector fasteners to build a workbench or shelving unit. The kit features the Simpson Strong-Tie Rigid Tie RTC2Z corner connector that makes it easier to make strong and durable corner connections with 2 x 4 lumber using no angle cuts or bolts. Each kit contains enough RTC2Z connectors to construct one workbench. Two kits are necessary to build a four-shelf unit.

Simpson Strong Tie Wbsk Workbench & Shelving Kit

Simple Workbench Plans

How To Build A Low-Cost Sturdy Work Bench From 2x4's And OSB

DIY Mobile Workbench with Plans--Storage, Outfeed, & Assembly

DIY 1-Hour Workbench / Outfeed Table : 10 Steps (with Pictures) - Instructables

Simple Workbench // Outfeed Table with Shelf Storage

Diy How To Build A Workbench Style Custom Desk Building – Otosection

Easy DIY Workbench With Drawers