The KILZ Exterior Siding, Fence, and Barn Paint is the best deck paint if you want a specialized wood deck product. KILZ paint has both an oil and water based formula, so it combines the best elements of both.
Prepare and Stain Composite Decks ... Do not paint in direct sun. Stain small sections at a time and avoid lap marks. Start at one edge and follow through the end of the boards. Do three or four boards at a time. ... Best: #CAB3306 Cabot Composite Decking Stain . Caution! Things to consider
Composite Deck Finish by Messmer's brings back the beauty of your composite decking and railings. This formula restores color and protects it from mildew and stains. Recommended application once every 1-2 years depending on exposure to the elements, in high traffic areas touch ups may be needed more regularly.
Cost to Stain a Deck. The average cost to stain a deck is between $540 and $1,050, depending on the size of your deck and what type you use. Most stains come in 1-gallon containers and provide around 200 to 300 square feet of coverage depending on the thickness of the stain.
For your project in zip code 98102 with these options, the cost to paint a deck starts at $1.73-$3.59 per square foot. Your actual price will depend on job size, conditions, finish options you choose.