DIY Welcome Porch Signs are one of the most popular signs to paint for your home. In this tutorial, Kari G. shows you tips on painting a 6 foot welcome sign for your porch. You will learn how to seal your project before and after you paint, how to basecoat your project with either stain or acrylic paint, stencil basics, how to use multi-layer stencils and an easy way to paint gnomes with stencils.