Making sure you have a “FLAT” frame when building a workbench or table is important – as the adage goes, you need a good foundation to build off off – Winding sticks are a fast and easy way to determine if you are flat or what you are working on has a twist – people have been using them for many many years in hand tool woodworking so it goes without saying, if it ain’t broke, don’t fix it – I don’t take to all woodworking tips and tricks but if you haven’t tried these to flatten your workbench give it a try – my guess is you will find them very useful – not to mention you can use scrap wood like I did – works great on workbenches, end tables, coffee tables, cabinets or pretty much anything else in your woodworking endeavours that you need to have a flat top or sit flat on the ground