It is not always necessary to remove old stain before restaining a deck. If the previous stain is in good condition and is compatible with the new stain, you may be able to apply a new coat after thorough cleaning. However, if the old stain is in bad condition, flaking, or peeling, it is best to remove it completely to ensure an even surface and proper adhesion for the new coat. Staining over a damaged layer can lead to an uneven finish and poor penetration. For best results, test a small area first and consult the stain manufacturer's guidelines.

The best exterior paint for the job of painting your front porch depends on the material you’ll be painting. Acrylic paint is often recommended for a wooden porch as it’s durable and easy to apply. If your porch is made of concrete, you’ll need to find a formula suited to that material.

Wood stain is typically dry to the touch within 6 to 12 hours, but it is not fully cured at this point. You should wait at least 24 hours before applying a second coat or a protective finish. For surfaces like decks, avoid walking on them for at least 24 to 48 hours, and wait even longer before placing furniture. The full curing process can take from 24 hours to one week, depending on the type of stain. Factors like high humidity and cold temperatures can extend drying and curing times, so it's wise to allow for extra time in these conditions.

Painted decks typically require a new coat about once every ten years. In between new coats, it's best to maintain your deck by regularly removing debris, washing it down with non-abrasive cleaners, and staying ahead of structural issues, such as loose boards and rotting wood. In some cases, painting a small section of your deck affected by damage or the sun can lower your costs and workload.