Prefabricated stair components and stair tread finish systems and methods of making and using the same

1. A composite stair component comprising:

a decorative finish layer comprising wood, textured or non-textured paper, a veneer layer, or any combination thereof;

a support layer comprising wood, medium density fiberboard (MDF), polyvinyl chloride (PVC), a polymeric material, a composite material, or any combination thereof;

a composite profile such that the support layer comprises a molded support layer having (i) an upper support layer surface, (i) a lower support layer surface, (iii) an inner support layer edge surface, at least a portion of the inner support layer edge surface being substantially perpendicular to the lower support layer surface, and (iv) a lower support layer portion extending substantially perpendicular to the inner support layer edge surface and substantially parallel with and below the lower support layer surface,

wherein the lower support layer portion comprises an upper inner support layer surface below the lower support layer surface, and the upper inner support layer surface is a distance d from an upper composite profile surface, and distance d is less than or equal to 1.0 inch (in.).

2. The composite stair component of claim 1 , wherein the molded support layer comprises polyvinyl chloride (PVC).

3. The composite stair component of claim 2 , wherein the decorative finish layer comprises wood.

4. The composite stair component of claim 2 , wherein the decorative finish layer comprises a veneer layer.

5. The composite stair component of claim 2 , wherein the decorative finish layer further comprises a resin that coats, impregnates or encompasses the wood, the textured or non-textured paper, or the veneer layer.

6. The composite stair component of claim 1 , wherein the molded support layer further comprises an outer support layer front edge surface, wherein (i) the outer support layer front edge surface extends from and is connected to the upper support layer surface, and (ii) at least a portion of the outer support layer edge surface extends below the lower support layer surface.

7. The composite stair component of claim 6 , wherein the upper support layer surface and the outer support layer front edge surface form a first curved surface profile.

8. The composite stair component of claim 7 , wherein the molded support layer further comprises an outer lowermost support layer edge surface, wherein (i) the outer lowermost support layer edge surface extends from and is connected to the outer support layer front edge surface, and (ii) at least a portion of the outer lowermost support layer edge surface extends below the upper inner support layer surface.

9. The composite stair component of claim 8 , wherein the upper support layer surface and the outer support layer front edge surface and the outer lowermost support layer edge surface form a second curved surface profile.

10. A composite stair component comprising:

a decorative finish layer comprising wood, textured or non-textured paper, a veneer layer, or any combination thereof;

a molded support layer having (i) an upper support layer surface, (ii) a lower support layer surface, (iii) an inner support layer edge surface, at least a portion of the inner support layer edge surface being substantially perpendicular to the lower support layer surface, and (iv) a lower support layer portion extending substantially perpendicular to the inner support layer edge surface and substantially parallel with and below the lower support layer surface, said molded support layer comprising wood, medium density fiberboard (MDF), polyvinyl chloride (PVC), a polymeric material, a composite material, or any combination thereof; and

an adhesive layer positioned between the decorative finish layer and the molded support layer,

wherein the lower support layer portion comprises an upper inner support layer surface below the lower support layer surface, and the upper inner support layer surface is a distance d from an upper composite profile surface, and distance d is less than or equal to 1.0 inch (in.), and

wherein the composite stair component comprises an upper composite profile surface and an outer composite profile front edge surface, and (i) the outer composite profile front edge surface extends from and is connected to the upper composite profile surface, and (ii) at least a portion of the outer composite profile front edge surface extends below the lower support layer surface.

11. The composite stair component of claim 10 , wherein the upper composite profile surface and the outer composite profile front edge surface form a third curved surface profile having a nose radius R n , and the nose radius R n is less than or equal to 0.5 in.

12. The composite stair component of claim 10 , wherein the composite stair component further comprises an outer lowermost composite profile edge surface, wherein (i) the outer lowermost composite profile edge surface extends from and is connected to the outer composite profile front edge surface, and (ii) at least a portion of the outer lowermost composite profile edge surface extends below the upper inner support layer surface.

13. The composite stair component of claim 12 , wherein the decorative finish layer extends along the upper composite profile surface, the outer composite profile front edge surface, and the outer lowermost composite profile edge surface.

14. The composite stair component of claim 10 , further comprising:

a protective surface wear layer over said decorative finish layer, said protective surface wear layer comprising at least one resin or polymeric material.

15. A stair comprising:

a stair tread comprising a stair nose;

a stair riser extending below said stair tread and said stair nose; and

the composite stair component of claim 10 at least partially covering one of more of: (i) said stair tread, (ii) said stair nose, and (iii) a bottom section of the stair nose.

16. A method of making a molded composite stair component, said method comprising:

combining (i) a decorative finish layer comprising wood, textured or non-textured paper, a veneer layer, or any combination thereof, (ii) a support layer comprising wood, medium density fiberboard (MDF), polyvinyl chloride (PVC), a polymeric material, a composite material, or any combination thereof, and (ii) an adhesive layer so that the adhesive layer is positioned between the decorative finish layer and the support layer; and

molding the decorative finish layer, the adhesive layer, and the support layer,

wherein (1) the molded composite stair component comprises a lower support layer portion extending (i) substantially perpendicular to an inner support layer edge surface and (ii) substantially parallel with and below a lower support layer surface, (2) the lower support layer portion comprises an upper inner support layer surface below the lower support layer surface, and the upper inner support layer surface is a distance d from an upper composite profile surface, and distance d is less than or equal to 1.0 inch (in.), and (3) the composite stair component comprises an upper composite profile surface and an outer composite profile front edge surface, and (i) the outer composite profile front edge surface extends from and is connected to the upper composite profile surface, and (ii) at least a portion of the outer composite profile front edge surface extends below the lower support layer surface.

17. A stair comprising:

a stair tread comprising a stair nose;

a stair riser extending below said stair tread and said stair nose; and

the composite stair component of claim 1 at least partially covering one of more of: (i) said stair tread, (ii) said stair nose, and (iii) a bottom section of the stair nose.

18. A method of making the composite stair component of claim 1 , said method comprising:

combining (a) the decorative finish layer, and (b) the support layer; and

molding the decorative finish layer and the support layer to form the composite stair component.

19. A stair comprising:

a stair tread comprising a stair nose;

a stair riser extending below said stair tread and said stair nose; and

the composite stair component of claim 3 at least partially covering one of more of: (i) said stair tread, (ii) said stair nose, and (iii) a bottom section of the stair nose.

20. A stair comprising:

a stair tread comprising a stair nose;

a stair riser extending below said stair tread and said stair nose; and

the composite stair component of claim 4 at least partially covering one of more of: (i) said stair tread, (ii) said stair nose, and (iii) a bottom section of the stair nose.