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The Daily Insight

What is Redwood con common

Author

Christopher Lucas

Published Apr 09, 2026

Redwood Con Common “Con Common” is short for “Construction Common” which means that the wood can be used for basic construction projects like fences. It comes from the outer edge of the log (sapwood), and the colors can vary from shades of ivory, tan, brown, red, or pink.

What is the best grade of redwood?

The highest quality architectural grade, clear all heart redwood is entirely heartwood, and certified to be free of defects on at least one face. According to California’s Redwood Inspection Service, this wood is best for siding, trim, and high end garden structures.

How many grades of redwood are there?

Redwood Lumber is available in more than 30 different grades, from general-purpose grades to highly specialized grades intended for a single specific use. It is graded by appearance and durability, with criteria defined by the Redwood Inspection Service and now administered by the Western Wood Products Association.

What are the different grades of redwood decking?

Garden grades of redwood include Deck Heart, Construction Heart, Deck Common, Construction Common, Merchantable Heart, and Merchantable. These grades may be offered seasoned or unseasoned. They are frequently specified for exterior and garden structures where knots or other characteristics have little or no effect.

What is Con heart wood?

Con-Heart Redwood is a vers atile, sustainable, premium quality wood that is cut directly from the center of the tree. This type of Redwood is rich in tannins, which gives it a distinct reddish color. The closer to the heart of a Redwood tree you get, the richer the color will be.

Can redwood be used for framing?

While redwood lumber was also historically used for framing, today it is primarily used for external construction. These uses include fencing, decking, siding and post material.

What is premium redwood?

Premium Redwood comes in a variety of colors from white to pink to red and reddish brown. In it’s natural state, it is a few shades lighter than All-Heart Redwood. As far as grain patterns and the ability to absorb stains and finishes, it is definitely on par with All-Heart Redwood.

What wood is similar to redwood?

A related species, (Sequoiadendron giganteum), sometimes known as Giant Sequoia or Wellingtonia, produces similar lumber. Redwood lumber is very soft and lightweight, with a decent strength-to-weight ratio.

Is Cedar better than redwood?

Redwood is measurably stronger than cedar – by about 23%. Redwood is therefore more durable than cedar.

Is Redwood OK for ground contact?

All joking aside pressure treated lumber is near termite proof and it holds up to moisture and is rated for direct ground contact. The only other good option is to paint regular wood such as doug fir with a proper three coats.

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What is bee grade redwood?

Details Parent Category: Decking. High quality grade containing limited knots and sapwood in varying amounts. Redwood Decking.

How do I choose redwood lumber?

Excellence of appearance is a major factor in the grading of redwood. Clear- ness (freedom from knots) is the deter- minant for the highest grades. Other grades are categorized by number, size and nature of knots and the presence of other characteristics such as stains, crook or manufacturing defects that may occur.

What is sapwood Redwood?

Sapwood is the wood that grew in the last 20 years or so of a tree’s life prior to being harvested (outer perimeter of a tree trunk). Sapwood has less decay resistance than the “heartwood” that grew earlier in the tree’s life.

What do you mean by sapwood?

sapwood, also called alburnum, outer, living layers of the secondary wood of trees, which engage in transport of water and minerals to the crown of the tree. The cells therefore contain more water and lack the deposits of darkly staining chemical substances commonly found in heartwood.

Is Redwood a pink?

You might, though, prefer the look of top-grade vertical grain for cabinets and furniture. Keep in mind that redwood heartwood looks salmon pink when first cut, but after exposure to air and sunlight it changes to dark red. Its sapwood remains white.

Is Con heart a redwood?

Redwood Grades & Terms Con Heart allows unsound knots, heart center, and sapwood on an occasional edge. An excellent value, this grade allows for knots up to 2″ diameter on a 6″ wide piece, and larger knots in wider face widths. All knots must be tight and well distributed. … Free from knots on all faces, no sapwood.

Is Redwood good for fence posts?

Like its color, Redwood’s resistance to insects and rot varies based on the part of the tree. Heartwood will have the greatest resistance. If you intend to use redwood for fence posts, it’s essential to use a heartwood grade.

Why is sapwood not used?

Sapwood is not ideal for many woodworking projects due to its high moisture content. The moisture in the sapwood causes the wood to shrink as it dries, and it also makes the wood more susceptible to decay and fungus.

What is rough redwood lumber?

SKU: R212CHR. Redwood is a durable softwood that is resistant to harsh weather elements, decay and insects. Redwood is a durable softwood that is resistant to harsh weather elements, decay and insects. This construction grade heart is ideal for many exterior applications. 2 inches x 12 inches.

What is S4S Redwood?

1×6 Clear Redwood Lumber, S4S Boards are a nice clear B grade and S4S where both sides and edges are planed smooth. The B grade is reasonably clear, but allows for an occasional small tight knot and small imperfection. Actual board dimension is 3/4″ thick by 5-1/2″ wide in random lengths from 3′ to 20′.

Are there different grades of cedar?

First, there are two different grading systems for Cedar: Structural Grade and Appearance Grade.

Can you build a house with redwood?

Redwood is a premium building wood. It has a chemical inside the pores that makes it weather-, insect- and rot-resistant. Redwood will last far longer than any other type of wood when exposed to the elements. It’s perfect for almost any outdoor application but can also be used on the interior of a home.

Is Douglas fir considered a redwood?

Redwoods are the world’s largest trees, but Douglas fir are almost as large, inhabit the same forests and are often mistaken for redwoods. Despite the similarity of appearance, however, the two species are dissimilar, and produce wood with different characteristics.

What is stronger Douglas fir or redwood?

Both Redwood lumber and Douglas fir lumber are straight grained and, therefore, very sturdy. … Structurally Douglas fir lumber is stronger than Redwood lumber, and perhaps that is why it is used more frequently for preparing frames of building structures. Regardless, both these types of wood are known for their strength.

How can you tell redwood from pine?

Look at the color of your wood. Douglas fir is light colored wood, white to pale yellow. Pine is also a yellowish color, and redwood has a very distinctive color. It can be cherry-red to dark reddish-brown.

Should you paint redwood?

You can paint redwood as long as you follow the proper preparation procedure. Bare redwood rejects painted finishes unless it receives a primer base coat. Apply a particular type of primer and paint according to the location and function of the redwood surface.

How long will untreated redwood last?

Untreated redwood structures can last up to 30 years before succumbing to water damage. Still, some maintenance considerations are worth noting in order to extend the life of your deck or other outdoor structure.

What is the most weather resistant wood?

The granddaddy of all the moisture-resistant woods is certainly teak. Because of its natural oiliness, teak can withstand wet conditions very well. In fact, when freshly milled, the surface of teak feels very waxy.

Which is more rot resistant redwood or cedar?

Redwood and cedar naturally contain tannin (a chemical that gives the products their color), which keeps the wood insect resistant. Since Californian redwood has a higher level of tannin, it could be more rot resistant than cedar.

How can you tell if a tree is a redwood?

Redwood Tree Identification The best way to identify a species of redwood is by its needle leaves, distinguishable cones, and fibrous bark. First, look for reddish-brown trees and inspect the bark. Redwoods are identified by their fibrous or spongy bark. Then look for cones.

Is redwood OK for outside?

Redwood is ideal for all outdoor projects as it also resists against checking or cracking. Building with Redwood and Western Red Cedar is a very environmentally friendly way to go as redwood and cedar forests are excellent at reducing greenhouse gases in the environment.