Modular stairs with 13 steps height Below please find some of the essential information for your reference. 1.Solid wood stair:Beech Wood Stair,you can choose red oak,rubber wood ect2.Applicable Scope:Costruction Company,Office Building,Personal Villa,ect3.Riser Adjustment:It's possible to adjust the riser of each step between 5-7mm without having to cut or adjust baluster 4.Thestairs can be made based on customers drawings or ours5.Specification:Based on customer's requirements Our productsare both excellent in quality and resonable in price. Following is the the basic process of transaction Purchase Step 1.Design We supply CAD drawings for customers reference and confirm2.Negotiation The quality,price,material,delivery time,paymentterms.ect3.Place Order According your own design or your chose our design4.Production According customers confirmed drawings with detail dimensions5.Delivery Time Delivery cargos by sea or by air,according customers request