I'm having the same concern. I originally went to lumber liquidators and found a nice hand scraped strand bamboo flooring. I then went online and researched a load of companies. So far, I like Cali bamboo. My biggest concern was the formaldehyde in the products. Cali bamboo has little to no formaldehyde added in there product. I've read those same reviews about Morning star, but they were outdated. I was emailed a material safety data sheet on Morning Star brand, but no one could tell me how much formaldehyde content was in the morning star product. At the bottom of the sheet there was a disclaimer: "The information and data herein are believed to be accurate and have been compiled from sources deemed to be reliable. It is offered for your consideration, investigation and verification. Lumber Liquidators makes no warranty of any kind, express or implied, concerning the accuracy of completeness of the information and data herein. Lumber Liquidators will not be liable for claims relating to any party's use of or reliance on information and data contained herein regardless of whether it is claimed that the information and data are inaccurate, incomplete or otherwise misleading. It is incumbent upon the user to obtain the most up-to-date information". So I guess what they mean is that the info on the safety data sheet is BS. I'd like to know. Cali bamboo is great, but I actually prefer the hand scraped look they have from Morning Star at lumber liquidators. Does anyone know if Morning Stars 2011 line has added formaldehyde?? (That's the lovely odor you smell from the floors). I can't seem to be able to get a solid answer. This is what the safety data sheet states for Morning Star: 3000 John Deere Road Toano, VA 23168 Emergency phone: 1 800-HARDWOOD Fax: 1 757 259 7295 IMPORTANT NOTICE: This material Safety Data Sheet (MSDS) is issued by LUMBER LIQUIDATORS. LUMBER LIQUIDATORS flooring will issue a new MSDS when there is a change in product specifications and/or regulations. LUMBER LIQUIDATORS will not accept any responsibility for any change to its MSDS in content by other person or organization. IDENTIFICATION Product name: Prefinished Strand Bamboo Flooring Trade name: Morning Star Bamboo Flooring Other Names: Various Manufacturer Information: Lumber Liquidators Inc 3000 John Deere Road Toano, VA 23168 Tel: (757) 259-4280 Fax: (757) 259-7295 www.lumberliquidators.com Description: This product is composed of bamboo fibers bonded together with urea formaldehyde (UF) resins. The fibers are mixed and pressed together to give a unique shade blend and increase hardness. The wear layer is finished by 7 coats of polyurethane with aluminum oxide coating manufactured by Treffert or Klumpp UN number: Not applicable Dangerous goods class: Not applicable Product Use: Building Materials � Commercial or Residential MSDS Morning Star Strand Bamboo Flooring, Revision 3, April 2009 Page 2 of 7 Hazardous ingredients/identity information: Name CAS #2 % Agency Exposure Limits Comments Bamboo1 None 89-90 OSHA3 OSHA ACGIH4 ACGIH PEL5-TWA6 15 mg/m3 PEL-TWA 5 mg/m3 TLV7-TWA 3 mg/m3 TLV-STEL8 10 mg/m3 Total dust Respirable dust fraction Respirable dust fraction Inhalable particles Urea Formaldehyde resin solids 9011- 05-6 10-11 OSHA OSHA ACGIH PEL-TWA 0.75ppm PEL-STEL 2 ppm TLV - Ceiling 0.3 ppm Free gaseous formaldehyde (contains less than 0.1% free formaldehyde) UV Finish Polymerized polyurethane None 0-1 OSHA ACGIH PEL-TWA none TLV-TWA none None None 1 CAS # = Chemical Abstract System. 2 OSHA = Occupational Safety and Health Administration. 3 AGCIH = American Conference of Government Industrial Hygienists. 4 PEL = Permissible Exposure Limit. 5 TWA = Time Weighted Average. 6 TLV = Threshold Limit Value. 7 STEL = Short Term Exposure Limit Note: Bamboo is a member of the grass family which has distinct anatomical differences from that of wood. Therefore, bamboo would be regulated as an organic dust in a category known as "Particulates Not Otherwise Regulated" (PNOR), or Nuisance Dust by OSHA. The ACGIH classifies dust or particulate in this category as "Particulates Not otherwise Specified". Physical data: Physical State: Solid Boiling Point: Not applicable Freezing Point: Not applicable Specific Gravity: 0.58 g/ml Vapour Density: Not applicable % Volatiles By Volume: 0 Melting Point: Not applicable Vapour Pressure: Not applicable Percent Moisture 5% - 9% Solubility in H20 (% by wt.): Evaporation Rate (Butyl Acetate = 1): Not applicable pH: Not applicable MSDS Morning Star Strand Bamboo Flooring, Revision 3, April 2009 Page 3 of 7 Appearance and odor: Bamboo fibers mixed creating a shade blend unique to each plank (light yellows for natural, light browns for carbonized or a mix of lights yellows and light browns shades). This product can also be stained with various colors. Low-fuming urea formaldehyde resins have a slightly aromatic odor. Fire and explosion data: Flash Point: Not applicable Auto ignition Temperature: Not available, however, it is usually accepted that the ignition of bamboo begins when the temperature reaches 204-260�C (400�500�F). (Depends upon duration of exposure to heat source and other variables). Explosive Limits in Air: Not applicable. See below under "Unusual fire and explosion hazards" Extinguishing Media Water, Carbon dioxide, Dry chemical, Sand. Special Fire Fighting Procedures None Unusual Fire and Explosion Hazards Sawing, sanding or machining can produce bamboo dust as a by-product which may present an explosion hazard if a dust cloud contacts an ignition source. An airborne concentration of air is often used as the LEL for bamboo dust. Reactivity data: Conditions Contributing to Instability Stable under normal conditions Conditions to avoid Excessive moisture, condensation or water vapor; Open flame or conditions above 400 F. Incompatibility Avoid contact with oxidizing agents. Avoid open flame. Product may ignite when temperature reaches in excess of 204�C (400�F). Hazardous Decomposition Products Thermal and/or thermal oxidative decomposition can produce irritating and toxic fumes and gases, including carbon monoxide, hydrogen cyanide, aldehydes, organic acids and polynuclear aromatic compounds. Hazardous Polymerization Not applicable MSDS Morning Star Strand Bamboo Flooring, Revision 3, April 2009 Page 4 of 7 HEALTH HAZARD INFORMATION Carcinogenicity Listing: (X) NTP1: Group 2, A & B Formaldehyde, Wood dust NTP-Group 2: Reasonably anticipated to be a carcinogen. A) Limited evidence of carcinogenicity from studies in humans which indicates that causal relationship is credible. B) Sufficient evidence of carcinogenicity from studies in experimental animals (X) IARC2 Monographs; Formaldehyde, Group 2A, Wood dust, Group 1 IARC-Group 1: Carcinogenic to humans; sufficient evidence of carcinogenicity. This classification is primarily based on studies showing an association between occupational exposure to wood dust and adenocarcinoma of the nasal cavities and paranasal sinuses. (X) OSHA3 Regulated: Formaldehyde IARC-Group 2A: Probably carcinogenic to humans; limited human evidence and sufficient evidence in experimental animals. Studies of cancer incidence among workers in a wide variety of occupations have failed to convincingly show carcinogenic activity of formaldehyde in humans. Gaseous formaldehyde has been shown to cause cancer in certain laboratory animals after long-term exposure to very high concentrations (14+ ppm); concentrations which are far above the levels of formaldehyde gas emitted by this product. 1 NTP = National Toxicology Program 2 IARC = International Agency for Research on Cancer 3 OSHA = Occupational Safety and Health Administration Exposure hazard: Eye Contact Wood dust can cause mechanical irritation such redness and watering. Skin Contact Not applicable for this product in its purchased form, however various species of wood dust may evoke allergic contact dermatitis in sensitized individuals. High concentrations of gaseous formaldehyde may cause allergic contact dermatitis. Ingestion Not likely to occur under normal use. If ingested, may cause gastrointestinal tract irritation. MSDS Morning Star Strand Bamboo Flooring, Revision 3, April 2009 Page 5 of 7 Inhalation Not applicable for this product in its purchased form, however, wood dust may cause nasal dryness, irritation and obstruction. Coughing and sneezing; sinusitis and prolonged colds have also been reported. Wood dust, depending on species, may cause respiratory sensitization and/or irritation. However, gaseous formaldehyde may cause respiratory difficulties for sensitized/allergic individuals. Emergency and first aid procedures: Eyes Flush eyes with large amounts of water. Remove to fresh air. If irritation persists, get medical attention. Skin Wash affected areas with soap and water. Get medical advice if rash or persistent irritation or dermatitis occurs. Inhalation Although not applicable for this product in its purchased form. However, if inhalation of bamboo dust, remove to fresh air. Get medical advice if persistent irritation, severe coughing or breathing difficulty occurs. Ingestion Not applicable under normal use. PRECAUTIONS FOR USE Accidental Release Measures Not applicable for product in purchased form. Dust generated from sawing, sanding, drilling, or routing of products may be vacuumed or shoveled for recovery or disposal. Avoid dusty conditions and provide good ventilation. A NIOSH-approved dust respirator should be worn if dust exposure limits are exceeded. Handling and Storage No special handling precautions are required for products in purchased form. Keep in cool, dry place away from open flame. This product will release small quantities of gaseous formaldehyde (≤0.12 mg/m3, which is below the E1 classification in accordance with EN 717-1:1998 test methods). Store in well ventilated area. MSDS Morning Star Strand Bamboo Flooring, Revision 3, April 2009 Page 6 of 7 Personal Protective Equipment: Respiratory Protection Not applicable for product in purchased form. A NIOSH-approved dust respirator is recommended when allowable exposure limits are exceeded. Protective Gloves Not required. However, cloth, canvas, or leather gloves are recommended to minimize potential mechanical irritation slivers from handling and machining product. Eye Protection Not applicable for product in purchased form. Goggles or safety glasses are recommended when machining this product. Other Protective Clothing or Equipments Not applicable for product in purchased form. Outer garments may be desirable in extremely dusty areas. Work/Hygiene Practices Follow good hygienic and housekeeping practices. Clean up areas where wood dust settles to avoid excessive accumulation of this combustible material. Minimize blowdown or other practices that generate high airborne-dust concentrations. Local Exhaust Provide local exhaust as needed so that exposure limits are met. Special / other None OTHER INFORMATION Disposal Consideration If disposed of or discarded in its purchased form, incineration is preferable. Dry land disposal is accepted in most states. It is, however, the user�s responsibility to determine at the time of disposal whether your product meets RCRA criteria for hazardous waste. Follow applicable federal, state, and local regulations. Transport and Regulatory information Not regulated as hazardous material by the U.S Department of Transportation and the Canadian Transportation of Dangerous Goods (TDG). Not a controlled product by WHMIS

I just wanted to add that I have the Hallmark engineered floor in wide plank hickory and absolutely love it. It was more expensive than other engineered floors, it was comparable in costs to solid hardwood. We went with engineered because it was in our kitchen. No issues in almost two years with this floor. The benefit of a thicker layer is more chances of sanding it down to refresh the floor. We hope our floor outlasts us.

Quietwalk or 1/4" cork. I've seen the Eco-cork "numbers" and how they achieved them....not pretty. Unless you can buy your downstairs neighbor a 12" drop-down Armstrong Acoustic ceiling, you will not get what you want from that product. Eco-Cork foam is 90% polyethylene foam (not cork). They HAD to add cork because of some complaints that they were using the word "cork" when it didn't have ANY cork (100% polyethylene foam = false advertising anyone?). So...they added a snick of cork and then republished their old numbers. Done like dinner. And still wonky after all these years. Having sold and worked with cork for more than 6 years, I have investigated pretty much every underpad out there. QuietWalk is the ONLY one I have respect for. Please use their 3mm thick pad...or thicker if you can. The 1/4" cork is lovely because you throw it down like a beach blanket. No tape. No glue. Just butt the edges together and start laying the floating wood floor. It will help even out tiny wobbles in the gypcrete...which is helpful because gypcrete is a PAIN in the @ss to deal with if it needs patching. Either one will get you a nice quiet home....the cork will be more rigid and sometimes that is needed over a little bit of a wonky subfloor.

I'm a fan of Hickory. Love it! I love it's STRONG variation! Yep. Variation is the word that can be used for Hickory. If you are going for "mid-tone" then it means the Hickory is stained. No problem. That's fine. Hickory takes a stain very nicely. But it will still have plenty of variation. The stain will even that out a little bit, but not entirely. The finish is UV cured urethane. I'm not very excited about that finish. If you are going for factory finish, you will want to work with the TOUGHEST finishes on the market (that's why you go with factory finished...for the TOUGH finish). The UV cured urethane is a ho-hum type of finish. Average would be the best way to describe it. The thickness of the plank is 3/4" = normal for sold. The plank width is 5" with random lengths UPTO 60" (5ft). That tells me there will be many planks in the 3' - 4' range. Again, this is ho-hum average. And with a wide plank product, it will need "glue assist". And Hickory certainly needs it because it has a bit more movement (less stable) than white oak. And then there is the "low gloss" format. The low-gloss finish on this depth of colour = nightmare to live with. It will show dust, etc as well as oily foot prints, sock prints, paw prints and will look hazy at certain times during the day. The "haze" is part of the chemical make up of the finish itself = that's how they take away the gloss...they haze it with a chemical additive. The haze goes away when you sand and refinish the floor. That's the only way to fix it. If you must have a mid-tone floor, I would recommend a TOUGHER finish (aluminum oxide or ceramic infused polyurethane) in a satin. Satin is FAR MORE livable. It offers a lovely glow without being shiny. It hides skin oils (like paw prints from dogs) because it is the same gloss level as skin oils....it isn't hazy....you get the idea.