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READ AND REMOVE THIS PAGE BEFORE PLACING
THE SPECIFICATION SECTION IN THE CONTRACT

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DIVISION 5 : METALS

SECTION 05511 - METAL STAIRS AND HANDRAILS  

USE:	[Furnishing ] [and] [installing] metal stairs and handrails.  

NOTES TO SPECIFIER:

	A.	Options within paragraphs are identified by enclosure in brackets; blank spaces enclosed by brackets [_____] provide for information to be inserted, as appropriate, to individual projects.

	B.	TO AVOID CONFLICTING REQUIREMENTS AND COSTLY MISTAKES, the specifier must edit (delete, substitute or add to the text).  The remaining paragraphs must be renumbered.

	C.	DELETE FOR FINAL COPY: Notes to the Specifier, located between lines of asterisks; all [brackets], underlining, boldface, and italics, within the paragraphs; and this page.  (Open Reveal Codes [alt F3] to do this accurately.)

	D.	To Edit “(Footer B)”: (Corel 8).  ENTIRE FOOTER SHOULD BE BOLDED.  Click in the footer and delete the “Project Name (ftr B)” text and replace it with the Name of the Project (upper and lower case).  Replace date with current MM/YY (WITHOUT BRACKETS).

	E.	The Guide Specifications are intended to be continuously reviewed and revised.  User’s technical comments are appreciated.  Also, other related or similar specification that are written “from scratch” that could benefit others, or other questions can be sent to NSTC A/E Group, ST 110, or call (303) 987-6868.

DRAWING DATA REQUIRED:

REQUIRED SPEC MODIFICATIONS:

GENERAL NOTES

A.	Whenever entire articles, paragraphs, or subparagraphs are not applicable, the articles, paragraphs, or subparagraphs should be deleted; when necessary, reletter or renumber articles, paragraphs, or subparagraphs.

B.	THIS GUIDE IS NOT INTENDED AS A SUBSTITUTE FOR READING THE ENTIRE SECTION.

TECHNICAL NOTES

A.	1.1B:  Select or add applicable specification sections.  Do not list specification sections from Division 5.

B.	1.2:  Select or add applicable references.

	C.	1.3A:  Select applicable phrase.

D.	1.3B:  Insert number of shop drawings required.  Normally 5 copies are required.  Distribution after review is normally 1 copy to the COR, 3 copies to the Contractor, and 1 copy to the project file.

E.	4.01 and 4.02:  When a "lump sum" Contract is used, delete the title PART 4:  MEASUREMENT AND PAYMENT, and both articles from this section.  Measurement and payment will be addressed in Part 4 of [Section 01009 - General Information and Requirements] [or] [Section 01010 - Summary of Work].

REVISIONS OF THIS SECTION:
CSI format, editorial changes: 12/01
Metric:  
Technical Update: 08/92

SECTION 05511

METAL STAIRS AND HANDRAILS 

PART 1:  GENERAL

1.1  SUMMARY

	A.	Section Includes:  Furnishing and installing welded metal stairs and handrails.

1.2  SUBMITTALS

	A.	General:  Submittals shall be according to [Section 01009 - General Information and Requirements.] [and] [Section 01330 - Submittal Procedures.] [and] [Section 01331 - Certificates.] 

	B.	Shop Drawings:  Submit [___] copies for approval indicating thickness, type, grade, class of metal, and dimensions.  Show construction details, reinforcement, anchorage, and installation with relation to stair construction.  Drawings shall be prepared by and bear the stamp of a registered structural engineer.

1.3  QUALITY ASSURANCE

	A.	Qualifications of Welders:  Shall be according to AWS D1.1 using procedures, materials, and equipment of the type required for the work.

1.4  PROJECT/SITE CONDITIONS

A.	Environmental Conditions:  Do not clean or paint surface when damp or exposed to foggy or rainy weather, or when the material surface temperature is below 45 degrees F or over 95 degrees F.

PART 2:  PRODUCTS

2.1  MATERIALS

	A.	Pipe:  Individual members shall be 1-1/2 inch nominal diameter, according to ASTM A 53, Type E or S, Grade B, Schedule 40 pipe with welded joints ground smooth.

	B.	Fittings for Steel Pipe:  Standard malleable iron fittings.

	C.	Steel and Iron:  Standard mill finished structural steel shapes or bar iron according to AISC Manual of Steel Construction and ASTM A 36.

	D.	Floor Plates:  Shall be according to ASTM A 786 pattern 5.  Unless otherwise shown, steel plate shall be not less than 14 ga.

	E.	Anchors and Fasteners:  Where exposed, shall be of the same material, color, and finish as the metal to which applied.

2.2  FABRICATION

	A.	Shop Fabrication:  Fabrication and assembly shall be done in the shop to the greatest extent possible.  Fabricate according to approved drawings.  Work shall be set to established lines and elevations and securely fastened in place.  Thickness of metal and details of assembly and supports shall give angle strength and stiffness for the minimum loads specified or indicated.  Joints exposed to weather shall be formed to exclude or drain moisture.  Conceal fastenings where possible.

B.	Finish:  Metal, including accessories, shall receive a shop-applied coating of zinc chromate according to ASTM D 478.

PART 3:  EXECUTION

3.1  EXAMINATION

	A.	Verification of Conditions:  Verify measurements before fabrication.

3.2  PREPARATION

	A.	Surface Preparation:  Clean metal work by power wire brushing or other approved manual or mechanical means for removal of rust, loose paint, scale, and deleterious substances.  Wash cleaned surfaces which become contaminated with rust, dirt, oil, grease or other foreign substances with solvents until thoroughly clean.  Cleaning steel to be imbedded in concrete is not required.

	B.	Painting:  After surface preparation, apply pretreatment and primer as specified.  Do not coat surfaces of items to be embedded in concrete.  Recoat damaged surfaces using surface preparation, treatment, primer, and paint that was applied to adjacent surfaces upon.  On surfaces that will be concealed in finished construction or that will not be accessible for finish painting, apply an additional prime coat to a minimum dry film thickness of 0.1 mil.  Tint the additional prime coat with a small amount of tinting pigment.  See also Section 09915 - Exterior and Interior Painting.

3.3  ERECTION/INSTALLATION

	A.	General:  Metalwork shall be formed to shape and size, with sharp lines and angles and true curves.  Provide welding and bracing of adequate strength and durability, with tight, flush joints, dressed smooth and clean.  Shearing and punching shall leave clean, true lines and surfaces.  Weld permanent connections and finish smooth where exposed after installation.

	B.	Welding:  Perform welding, welding inspection, and corrective welding according to AWS D1.1.  Weld in a manner to prevent permanent distortion of the connected parts.  Weld continuously along the entire area of contact except where tack welding is permitted.  Do not tack weld exposed connections.  Grind smooth all welds that will be visible in the finished installation.

	C.	Joints:  Mill joints to a close fit where tight joints are required.  Corner joints shall be coped or mitered, well formed, and in true alignment.

	D.	Handrails:  Erected in a rigid manner, straight, plumb. and in positions shown on drawings.
	1.	Top surface shall be according to the following:
42 inches above horizontal surfaces
32 inches above stair nosings
32 inches above ramped surfaces
	2.	Rails shall extend horizontally 12 inches beyond the top and bottom of ramps for the handicapped, or as shown on the drawings, and return to wall-mounted brackets.  Wall-mounted stair handrails shall extend 12 inches at top of stair and continue slope past bottom riser of stair for a distance equal to the tread dimension; then extend horizontally for 12 inches and return both ends to wall-mounted brackets.  Stair-mounted handrails shall continue slope for 12 inches and return to newel post.
	3.	Rails shall be capable of resisting a force of 200 lbs applied at any point, vertically downward or horizontally, to the top of the rail as required by NFPA 101.

E.	Anchorage:  Provide anchorage for fastening work securely in place.  Sizes, kinds, and spacings of anchors not indicated or specified shall be as necessary for the purpose, and approved by the Contracting Officer.  Provide inserts of suitable approved types where required for support of anchorage of finish construction.  Anchors and anchor bolts in exterior walls shall be zinc-coated.

F.	Fastenings:  Do not use wood plugs in any material.  Make exposed fastenings of compatible material.  Conceal fastenings where practicable.

G.	Threaded Connections:  Make bolted work up tight and nick the threads or bush the stem to prevent loosening.

H.	Anchors and Connecting Members:  Provide in concrete or masonry as the work progresses, to avoid unnecessary cutting and drilling.

PART 4:  MEASUREMENT AND PAYMENT

4.1  METHOD OF MEASUREMENT

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WHEN A “LUMP SUM” CONTRACT IS USED, DELETE THE TITLE PART 4: MEASUREMENT AND PAYMENT, AND BOTH ARTICLES FROM THIS SECTION.  MEASUREMENT AND PAYMENT WILL BE ADDRESSED IN PART 4 OF SECTION 01009 - GENERAL INFORMATION AND REQUIREMENTS OR SECTION 01010 - SUMMARY OF WORK.

WHEN NOT A “LUMP SUM” CONTRACT, SELECT THE APPLICABLE PHRASES; USE THE “NO MEASUREMENT” PHRASE WHEN THE PAY ITEM IN THIS SECTION IS NOT INCLUDED IN THE BID SCHEDULE.
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	A.	Units: [he work described in this section will [not be measured for payment.] [be measured and paid for on a lump sum basis.]

4.2  BASIS OF PAYMENT

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WHEN NOT A “LUMP SUM” CONTRACT, SELECT APPLICABLE PHRASES; USE THE “NO DIRECT PAYMENT” PHRASE WHEN THE PAY ITEM IN THIS SECTION IS NOT INCLUDED IN THE BID SCHEDULE.

WHEN NOT A “LUMP SUM” CONTRACT AND PAYMENT IS TO BE MADE UNDER THIS SECTION, SELECT THE PAY ITEM.  DO NOT CHANGE THE PAY ITEM NUMBER.
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	A.	Payment: [No direct payment for the work described under this section will be made.  Consideration for this item shall be included in the bid price for other items of the Contract.] [Prices and payment will be full compensation for the work described in this section.  Payment will be made under:]

	Pay Item													Pay Unit

	05511(01) Metal Stairs and Handrails	Lump Sum

END OF SECTION

METAL STAIRS AND HANDRAILS
[12-01]
Project Name (ftr B)